When we hold onto to anything in life, there is pain.
Life is about flow. Everything in our universe reminds us of that. Sun rise, sunset. Tide in, tide out. Seasonal and weather changes, including moving clouds. Relationships starting and ending.
Sometimes we get so caught up in our egoic minds, that we forget life is about flow and we relentlessly insist that things have to be a certain way. We attach ourselves to our wrong perceptions.
I found myself caught up in values which I insisted on enforcing. It was frustrating.